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Features

Maxim's Flying Machine

Another Polar Expedition

The Manufacture of Birch Oil

The Arrow Weed and Mexican Jumping Beans

A Device to Hold Books in Order

A Singular Bridge Accident

An Automatic Car Brake

Coalbrookdale Bridge

The Edison Electric Illuminating Co.'s Central Station in Brooklyn, N. Y.

The World's Fair Buildings at Chicago

The Train Staff Block System

An Improved Barrel Making Machine

An Improved Ore Concentrator

A Simple and Effective Nut Lock

Simple Aerial Top

Departments

  • Letters

    Correspondence- June 13, 1891

  • Recommended

    New Books and Publications- June 13, 1891

  • Departments

    Business and Personal- June 13, 1891

  • Notes and Queries- June 13, 1891

  • Recently Patented Inventions- June 13, 1891

  • To Inventors- June 13, 1891

  • Index of Inventions- June 13, 1891

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